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Date:      Thu, 30 Nov 2000 10:21:41 -0600
From:      David Kelly <dkelly@HiWAAY.net>
To:        Duke Normandin <01031149@3web.net>
Cc:        questions@FreeBSD.ORG
Subject:   Re: ftp transfer rates on my LAN
Message-ID:  <20001130102141.A22943@HiWAAY.net>
In-Reply-To: <200011301354.eAUDsK013263@mail.hiwaay.net>; from 01031149@3web.net on Thu, Nov 30, 2000 at 06:43:54AM -0700
References:  <200011301354.eAUDsK013263@mail.hiwaay.net>

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On Thu, Nov 30, 2000 at 06:43:54AM -0700, Duke Normandin wrote:
> On 29 Nov 00 at 17:52, David Kelly wrote:
> >My gut feel is the Win95 machine is not going to run any faster. Then 
> >again you don't say what CPU's are used.
> 
> 486-66 20M = win95  486-66 32M = FBSD3.3R
[...]
> >Replacing one of the P-III's with an old AMD 5x86/133, 32MB, FreeBSD
> >3.5, and a 10/100 de0 ethernet, maxed out at 1.5MB/sec.
> 
> Well, I should then be grateful for the transfer rate that I am getting. 
> What a hell of drop you got. As suggested, I'm going to try setting the 
> media (in one NIC anyway) and both to full-duplex if my Compaq NIC can do 
> it. Thanks....

I wasn't clear as to whether or not yrou 3com cards are 10baseT or
10/100. Guess I could have looked up the model numbers.

Anyhow, my 5x86/133 is a most accurately described as a 486DX4/133 as
its CPU is a 486, the bus runs 33 MHz, internally it goes 4x.

A 486-33 could saturate the wire if its not blocked by HD I/O. It
can't send the data down the wire faster than it can read/write from
the HD. My old WD 240MB IDE drives ran 600k Bytes/sec with 100% CPU
utilization. This is back in the days when many of us cut our teeth
and learned to love SCSI. Today the performance differences are not
so clear cut.

--
David Kelly N4HHE, dkelly@hiwaay.net (hm)
======================================================================
The human mind ordinarily operates at only ten percent of its
capacity -- the rest is overhead for the operating system.


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